Refugees look at flood water following heavy rains at the refugee camp in Kutupalong, Bangladesh, Wednesday, July 28, 2021. (Photo: AP)

Monsoon floods and landslides have cut off more than 300,000 people in villages across southeast Bangladesh and killed at least 20 people, officials said Friday.

"The floods have stranded some 306,000 people in Cox's Bazar district. At least 70 villages have been submerged by floods," Mamunur Rashid, the district administrator, told AFP.

"At least 20 people have died in floods and landslides," he added.